Commit 25815473 authored by Ville Syrjälä's avatar Ville Syrjälä

drm/i915/cdclk: Give the squash waveform length a name

Replace the slightly magic 'size = 16' with a bit more descriptive
name. We'll have another user for this value later on.
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231128115138.13238-3-ville.syrjala@linux.intel.comReviewed-by: default avatarGustavo Sousa <gustavo.sousa@intel.com>
parent e2e19160
...@@ -1800,6 +1800,8 @@ static bool cdclk_pll_is_unknown(unsigned int vco) ...@@ -1800,6 +1800,8 @@ static bool cdclk_pll_is_unknown(unsigned int vco)
return vco == ~0; return vco == ~0;
} }
static const int cdclk_squash_len = 16;
static int cdclk_squash_divider(u16 waveform) static int cdclk_squash_divider(u16 waveform)
{ {
return hweight16(waveform ?: 0xffff); return hweight16(waveform ?: 0xffff);
...@@ -1811,7 +1813,6 @@ static bool cdclk_compute_crawl_and_squash_midpoint(struct drm_i915_private *i91 ...@@ -1811,7 +1813,6 @@ static bool cdclk_compute_crawl_and_squash_midpoint(struct drm_i915_private *i91
struct intel_cdclk_config *mid_cdclk_config) struct intel_cdclk_config *mid_cdclk_config)
{ {
u16 old_waveform, new_waveform, mid_waveform; u16 old_waveform, new_waveform, mid_waveform;
int size = 16;
int div = 2; int div = 2;
/* Return if PLL is in an unknown state, force a complete disable and re-enable. */ /* Return if PLL is in an unknown state, force a complete disable and re-enable. */
...@@ -1850,7 +1851,8 @@ static bool cdclk_compute_crawl_and_squash_midpoint(struct drm_i915_private *i91 ...@@ -1850,7 +1851,8 @@ static bool cdclk_compute_crawl_and_squash_midpoint(struct drm_i915_private *i91
} }
mid_cdclk_config->cdclk = DIV_ROUND_CLOSEST(cdclk_squash_divider(mid_waveform) * mid_cdclk_config->cdclk = DIV_ROUND_CLOSEST(cdclk_squash_divider(mid_waveform) *
mid_cdclk_config->vco, size * div); mid_cdclk_config->vco,
cdclk_squash_len * div);
/* make sure the mid clock came out sane */ /* make sure the mid clock came out sane */
......
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